223444312 has 96 divisors (see below), whose sum is σ = 530031600. Its totient is φ = 87526656.

The previous prime is 223444303. The next prime is 223444321. The reversal of 223444312 is 213444322.

It is a happy number.

223444312 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (223444303) and next prime (223444321).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 830514 + ... + 830782.

Almost surely, 2^223444312 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 223444312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (265015800).

223444312 is an abundant number, since it is smaller than the sum of its proper divisors (306587288).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

223444312 is a wasteful number, since it uses less digits than its factorization.

223444312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 465 (or 454 counting only the distinct ones).

The product of its digits is 4608, while the sum is 25.

The square root of 223444312 is about 14948.0537863630. The cubic root of 223444312 is about 606.8151773172.

Adding to 223444312 its reverse (213444322), we get a palindrome (436888634).

The spelling of 223444312 in words is "two hundred twenty-three million, four hundred forty-four thousand, three hundred twelve".